High pressure trapping pollution in the Valley, Officials Issue Advisory
Air quality officials are advising San Joaquin Valley residents that local conditions are cold, dry and stagnant, causing PM2.5 emissions (particulate matter pollution) to accumulate, resulting in higher pollution concentrations throughout the Valley air basin. The air basin includes the counties of San Joaquin, Stanislaus, Merced, Madera, Fresno, Kings, Tulare and the Valley portion of […]